package com.atguigu.lease.web.admin.custom.converter;

import com.atguigu.lease.model.enums.BaseEnum;
import org.springframework.core.convert.converter.Converter;
import org.springframework.core.convert.converter.ConverterFactory;
import org.springframework.stereotype.Component;

import java.util.Arrays;

@Component
public class StringToBaseEnumConverterFactory implements ConverterFactory<String, BaseEnum> {

    // String : 来源 ， 例如前端发送过来的数字："1","2"
    @Override
    public <T extends BaseEnum> Converter<String, T> getConverter(Class<T> targetType) {
        return new Converter<String, T>() {
            @Override
            public T convert(String source) {
                return Arrays.stream(targetType.getEnumConstants()).filter(item -> (""+item.getCode()).equals(source))
                        .findFirst().orElseThrow(IllegalArgumentException::new);
            }
        };
    }
}
